Fixing Ollama OAuth Error REQ-SP4-003 In LLxprt

Nov 18, 2025 by Alex Johnson 48 views

Encountering errors when integrating local models can be frustrating. This article dives into resolving the REQ-SP4-003 OAuth error that arises when using Ollama as an OpenAI provider within LLxprt, especially after upgrading to version 0.5.0. We’ll explore the potential causes and provide step-by-step solutions to get your local models working seamlessly again.

Understanding the OAuth Error REQ-SP4-003

When dealing with Ollama and LLxprt, the REQ-SP4-003 error indicates an issue with authentication. Specifically, it means that the necessary authorization token is unavailable for a given runtime ID. This can happen even when you haven't configured any API keys in Ollama, which is often the case when working with local models. The error message ProviderCacheError("Auth token unavailable for runtimeId=d3c0041f-443a-44ee-8db4-e7d73b8fe71a (REQ-SP4-003).") clearly points to this authentication failure.

Potential Causes

Several factors might contribute to this error. Here are some of the most common:

Version Incompatibility: The upgrade to LLxprt version 0.5.0 might have introduced changes in how it handles authentication with Ollama. What worked in previous versions might now require a different configuration.
Caching Issues: LLxprt might be caching authentication information that is no longer valid or compatible with the new version. This can lead to repeated attempts to use an outdated token.
Provider Configuration: Even without explicit API keys, LLxprt might be expecting some form of authentication handshake with the Ollama provider. The default settings might not be correctly configured for direct access.
Network Issues: Although less likely in a local setup, network glitches or firewall restrictions could prevent LLxprt from properly communicating with Ollama to establish an authenticated session.
Ollama Configuration: Even though you're not using API keys, certain Ollama configurations could interfere with the authentication process, especially if there are default security settings in place.

Troubleshooting Steps for OAuth Error REQ-SP4-003

To resolve the REQ-SP4-003 error, follow these troubleshooting steps. These are designed to address the most common causes and should help you get your LLxprt and Ollama integration back on track.

Step 1: Clear LLxprt Cache

Begin by clearing the LLxprt cache. Cached data can often cause conflicts after an upgrade. Here’s how you can do it:

Identify Cache Location: Determine where LLxprt stores its cached data. This location can usually be found in the LLxprt documentation or configuration files.
Clear the Cache: Manually delete the contents of the cache directory. Alternatively, LLxprt might provide a command-line option or setting to clear the cache.

Clearing the cache ensures that LLxprt starts with a clean slate and attempts to establish a fresh connection with Ollama.

Step 2: Review Provider Configuration

Next, carefully review the provider configuration in LLxprt to ensure it is correctly set up for direct Ollama access. Here’s what to check:

Base URL: Verify that the base URL is correctly pointing to your Ollama instance. Based on the provided information, it should be http://192.168.1.250:11434/v1.
Provider Type: Confirm that the provider type is set to openai. This tells LLxprt to treat Ollama as an OpenAI-compatible provider.
Authentication Method: Ensure that the authentication method is set to provider or a similar option that indicates direct access without API keys. If there are other authentication options, try switching to the most appropriate one for local access.

Step 3: Restart Ollama and LLxprt

Restarting both Ollama and LLxprt can help clear any lingering issues or temporary glitches. Here’s how to do it:

Restart Ollama: Stop and then start your Ollama instance. This ensures that Ollama is running with a clean state.
Restart LLxprt: Close and reopen the LLxprt application or restart the LLxprt service if it’s running as a background process.

Restarting both services ensures that they establish a new connection, free from any previous errors.

Step 4: Downgrade LLxprt (If Necessary)

If the error persists after trying the above steps, consider downgrading LLxprt to the previous version where it was working correctly. This can help determine if the issue is indeed with the new version.

Find Previous Version: Locate the installation files for the previous version of LLxprt.
Uninstall Current Version: Uninstall the current version of LLxprt from your system.
Install Previous Version: Install the previous version of LLxprt and test if the issue is resolved.

If downgrading fixes the problem, it confirms that the issue is specific to the new version, and you might need to wait for an update or patch.

Step 5: Check Network Configuration

Although less common in local setups, network configurations can sometimes interfere with the connection between LLxprt and Ollama. Verify the following:

Firewall Settings: Ensure that no firewall rules are blocking communication between LLxprt and Ollama.
Localhost Access: Confirm that both LLxprt and Ollama can access each other via localhost or the local network IP address.

Step 6: Examine LLxprt Logs

LLxprt logs can provide valuable insights into what’s happening behind the scenes. Here’s how to examine them:

Locate Log Files: Find the location of LLxprt log files. This information is usually available in the LLxprt documentation.
Analyze Logs: Open the log files and look for any error messages or warnings related to authentication or provider connections. These messages can provide clues about the root cause of the issue.

Step 7: Ollama Configuration Review

Even if you’re not using API keys, certain Ollama configurations might be affecting the authentication process. Review the following:

Default Security Settings: Check if Ollama has any default security settings enabled that might require authentication.
Access Restrictions: Ensure that there are no access restrictions preventing LLxprt from accessing Ollama.

Practical Examples and Commands

To further illustrate the troubleshooting steps, here are some practical examples and commands you can use:

Clearing LLxprt Cache (Example):
```
rm -rf ~/.llxprt/cache
```
This command removes the LLxprt cache directory in a Linux environment.
Restarting Ollama (Example):
```
ollama stop
ollama serve
```
These commands stop and start the Ollama service.
Checking Network Connection (Example):
```
ping 192.168.1.250
```
This command checks if your machine can reach the Ollama server.

Real-World Scenarios and Solutions

Consider these real-world scenarios and their corresponding solutions:

Scenario 1: Incorrect Base URL
- Problem: The base URL in LLxprt is misconfigured, pointing to an incorrect address.
- Solution: Update the base URL in LLxprt to the correct address of your Ollama instance (e.g., http://192.168.1.250:11434/v1).
Scenario 2: Firewall Blocking Connection
- Problem: A firewall is blocking the connection between LLxprt and Ollama.
- Solution: Configure your firewall to allow traffic between LLxprt and Ollama on the appropriate port (e.g., 11434).
Scenario 3: Caching Issues
- Problem: LLxprt is using outdated cached authentication data.
- Solution: Clear the LLxprt cache and restart both LLxprt and Ollama.

Conclusion

Resolving the REQ-SP4-003 OAuth error when using Ollama with LLxprt requires a systematic approach. By clearing the cache, reviewing provider configurations, restarting services, and examining logs, you can identify and address the root cause of the issue. Remember to verify network settings and Ollama configurations to ensure a smooth and authenticated connection. If the problem persists, downgrading to a previous version of LLxprt can help determine if the issue is version-specific.

By following these steps, you should be able to restore the functionality of your local models and continue leveraging the power of Ollama with LLxprt. For more information on OAuth and its implementation, visit the OAuth official website.